Cultivator



(No Model.)

J. A. BLOUNT GULTIVATOR.

No. 360,410.. Patented Apr. 5, 1887.

/-' v V v UNITED STATES PATENT OFFICE.

JOHN A. BLOUNT, OF SPRINGFIELD, OHIO.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 360,410, dated April 5, 1887.

Application filed May 12, 1886.

T 0 all whom it may concern:

Be it known that I, JOHN A. BLOUNT, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Straddle-Row Cultivators, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specitication.

My invention relates to improvements in cultivator-s of that class known as straddlerow cultivators; and it has for its object the improvement and simplification of construction of the parts, whereby the machine is rendered durable, simple, and efficient.

The novelty of my invention will be herein set forth, and speciiicall y pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a cultivator embodying my improvements. Fig. 2 is a plan View of one of the wheels, the forward part of one of the beams, and the hitch. Fig. 3 is an enlarged plan view of the front of one of the beams and the coupling mechanisim Fig. 4 is aside elevation of one of the couplingclamps. Fig. 5 is an enlarged detail of the beam-adjusting collar.

The sameletters of reference are used to indicate identical parts in all the figures.

A is the pole or tongue, of the usual construction, having secured to it the cross-girths B and O, to the latter of which are secured the usual hanger-hooks, D.

Between'the girths B and C is secured to the pole a box or bearing, E, into which from opposite sides are inserted the upper horizontal portions of the divided and independentlyswinging arch-bars F. Set-screws a, passed through the box IE, serve to hold the arch-bars from slipping laterally after they have been adjusted to make the furrow of the width required. The arch-bars F have their lower ends bent outwardly to form horizontal spindies 11, and upon which the usual wheels, G, revolve.

Instead of coupling the plow-beams II to the horizontal portion of the arch-bars, as is commen, I adjustably couple them to the vertical portions of the arch-bars, so that they can be Serial No. 530L927. (R o model.)

raised or lowered to suit the requirements of the work, in the following manner: A plate, I. is secured to and projects forward upon each side of each of the beams H, and is perforated, as at c, to receive trunnions (1 upon the clamp ing-blocks J, whose inner faces are vertical] y grooved to snugly embrace the vertical portions of the arch-bars F. A clamping-bolt, K, serves to cause the blocks J to embrace the bars F, as will be readily understood. By this conenables the beams to be raised or lowered or swung to either side and follow the sinuosities of the rows. To prevent the blocks and plowbeams from slipping down after having been adjusted, I provide a collar, e, as seen in Fig. 5, which is secured to the vertical portion of each of the arch-bars, and can be clamped thereto by a set-screw, f. This collar can be adjusted up or down and secured directly under the blocks J,which-rest upon it. To prevent the arch-bars F in their independent action from swinging too far forward or too far back, I employ chains L, whose upper ends are secured at the rear to the girth O and in front to the girth B, and whose lower ends are secured to a clip, (I, fastened upon the lower vertical portion of the arch-bars. These chains are of such length that when the back ones are taut the arch-bars are preferably in a vertical plane, while the front ones are slack and permit the arch-bars to swing backward to a limited extent, as will be seen by reference to Fig. 1, where the dotted lines show the change of position.

My improved hitch mechanism consists of bent clevis-rods M, straddling each of the wheels G, and hinged on the outer side to the spindles b and on the inner side to an arm or supporting-plate, N, rigidly secured to the spindles b between the wheels and the beams. The single-trees O are attached to the forward looped ends of these clevis-rods, where several hitching-loops are provided to enable the horses to be kept the proper distance apart at the different adjustments of the arches. By means of the plate N the clevis-rods M are held from falling below a horizontal position, and the draft is brought almost in directline with the plow-beams.

From the above construction it will be seen struction I produce a swiveled coupling that 2. The combination, with spindle 1), Wheel G, and supporting-plate N, rigidly secured to the spindle, of clevis-rods M, hinged to the spindle outside the wheel and to plate N between the wheel and the beam, substantially as described, and for the purpose stated.

JOHN A. BLOUNT.

\Vitnesses:

EDWARD W. RECTOR, CHAS. M. PEoK. 

